High-precision laser cutting machine

The utility model discloses a high-precision laser cutting machine. The high-precision laser cutting machine comprises a grating; the protection plate is arranged on the periphery of the grid; the rack is mounted on the protection plate; the cutting assembly is mounted on the rack; the protective assembly is installed on the cutting assembly and protects an upper protective cover, the upper protective cover is detachably installed at the output end of the cutting assembly, the periphery of the upper protective cover is sleeved with a lower protective cover, and the lower protective cover and the upper protective cover can stretch out and draw back. The protective assembly is arranged, the protective effect is achieved through an upper protective cover and a lower protective cover, in this way, the structure is simple, the external space of the device is not occupied, the device can be suitable for being used in a unit with a small machining space, and meanwhile during cutting machining, an operator can visual